All issues
Volume 28, Issue 1
Displaying 1-5 of 5 articles from this issue
- |<
- <
- 1
- >
- >|
-
Yasuaki FUKUTA, Takao OKUBO1992 Volume 28 Issue 1 Pages 1-7
Published: February 15, 1992
Released on J-STAGE: March 11, 2010
JOURNAL FREE ACCESSThe present study clarifies the influence on learning of variations in the length of work interruption periods by means of actual work trials in which the dispersion in work time of the learning process were taken by the ratio of variation (δ). The professing equation in production was applied, and a theory was developed which was able to express numerically the result by means of work achievement (Q).
The results can be summarized as follows.
(1) The relationship of the work interruption period and learning was analyzed numerically.
(2) The dispersion in the work time while learning increased with the length of the work interruption period.
(3) The relationship of the work interruption period and learning was relatively evaluated by means of work achievement (Q).View full abstractDownload PDF (2529K) -
Yoshiyuki EGAWA1992 Volume 28 Issue 1 Pages 9-19
Published: February 15, 1992
Released on J-STAGE: March 11, 2010
JOURNAL FREE ACCESSMany repetitive impulse-noises emitted from percussive tools were recorded on magnetic tape, and the wave forms and impulsive time intervals between each block of wave forms were examined. As the result of observation, it was found that the amplitude of wave forms were decreased exponentially, and impulsive intervals were less than 500ms.
Next, to examine the loudness for repetitive impulse-noises, the loudness test under the same RMS value was carried out using some artificial wave forms which were closely simulated to the waves observed. The loudness under the same RMS value was found to increase with increasing the time interval of the impulse.
Finally, based on the experimental data, the response model of auditory organs for repetitive impulse-noises was clarified. As the consequence of simulation on the experimental data of loudness test, the author concluded that the loudness is correlated with the physical properties for impulsive noise, when a time constant in response of auditory organs is 90ms.View full abstractDownload PDF (4839K) -
Ichiro HIEDA1992 Volume 28 Issue 1 Pages 21-28
Published: February 15, 1992
Released on J-STAGE: March 11, 2010
JOURNAL FREE ACCESSIn this paper, durations of Japanese syllables are equalized by psychological experiment. There are 100 kinds of syllables in Japanese, which are the minimum units of speaking and writing. Relations between physical characteristics of voice and its psychological effects are keys to synthesize natural voice. Duration of syllable is one of those characteristics, but its psychological effect is not examined yet. The experiment shown in this paper is performed by method of comparison. A pair of oral stimuli consist of a standard syllable with a constant duration and a comparison syllable whose duration should be equalized to the standard syllable. Varying duration of comparison syllable, the pair are repeatedly presented to subjects. Mean duration of comparison syllable which subjects report to be the same durations as the standard syllable, is regarded as psychologically equivalent duration of the syllable. Using this method, sensitivity of subject to changes of duration is examined. And individual difference of sensitivity is discussed statistically. Fifty-six syllables are also examined by the method, and relation between duration and the kinds of consonants in syllable is discussed. Method of varying duration of syllables is also described.View full abstractDownload PDF (4202K) -
Osamu SUENAGA, Motozo IHARA1992 Volume 28 Issue 1 Pages 29-36
Published: February 15, 1992
Released on J-STAGE: March 11, 2010
JOURNAL FREE ACCESSThe manual tracking control system is structured by utilizing the model following control system, to simplify the control of the plant which requires too much load of the human operator. The model following control system makes the plant output agree with the output of model, which describes the desired characteristics of the control system. In this paper, the plants were two second-lag stable and unstable systems, and the effects of the manual tracking control system structured by the model following control system (Experiment II) were compared to that of the ordinary manual pursuit tracking control system (Experiment I) experimentally, from the points of the simplification of control and the decrease of task load of human operator. In Experiment II, the model was assumed the first-order lag system which is able to be regarded as the proportional element.
As the result, on experiment II, as the human operator becomes controlled the model output in spite of the actual plant characteristics, the simplification of control and the decrease of task load of human operator are facilitated. Accordingly it was suggested that the manual tracking control system structured by the model following control system is useful from the ergonomic point of view.View full abstractDownload PDF (804K) -
Rakugo, Manzai and Commercial VideoEitaro MASUYAMA, Masahiko KATSUMI1992 Volume 28 Issue 1 Pages 37-45
Published: February 15, 1992
Released on J-STAGE: March 11, 2010
JOURNAL FREE ACCESSAn experiment has been designed to investigate the characteristics of the image of the various types of entertaining performance. Subjects were asked to evaluate the impression for the performance with video tape which consisted of 15 pieces of Manzai, Rakugo and Commercial film. Twenty-eight pairs of adjectives were used for the evaluation.
The results were analysed by principal component analysis and multiple regression analysis. The principal component analysis for the experimental data shows that several factors, such as intuitive-logical factor, like-dislike factor, agressive-peaceful factor, rhythmical-not rhythmical factor, veteran-fresh factor, and light-heavy factor were obtained. Cumulative coefficient of determination was 83%. The results indicates that Rakugo is logical and peaceful while Manzai is aggressive, and commercial films are intuitive.
In addition to the analysis, multiple regression formula were derived from the six factor score as independent variable and the no-comicality as the dependent variable. According to the formula, it is found that more intuitive, more like and more peaceful is more comical for Rakugo, while comicality for commercial films are relative to intuitiveness, likableness, and aggressiveness. The coefficient of determination was between 0.94 and 0.99.View full abstractDownload PDF (929K)
- |<
- <
- 1
- >
- >|